Apparatus for coloring glass inclosures



April 1929- .1. T. FAGAN ET AL- 1;708,788

APPARATUS FOR COLORING GLASS INCLOSURES Filed Dec. 6. 1927 2 Sheetsfiheei 2 JNSZENTUHE'. 1727B 7." FJE'ZN, I R0550: 51 PEEL/FE :22" $4 [W Eli Patented pr. 9, 1929.

TED STATE-S PATENT OFFICE.

JWHN T AGAN, 0F CLEVELAND HEIGHTS, AND ROSGOE G.

minus, or lULEVELAND,

@HTU, ASSIGNORS T0 GENERAL ELECTRIC COMPANY, A GORPORATIUIN' OF NEW YUM.

APPARATUS FOR COLORING GLASS INCLOSURES.

Application filed December 6, 1927. Serial lilo. 238.1822.

@ur invention relates to apparatus for coloring bulbs and other glass inclosures on the inside by means of dry powdered pigments. @ur invention is particularly adapted for use in the application of the method disclosed in Pipkin application @erial No. 223L541, filed November 7, 1927. The object of our invention is to provide an eficient conveniently operated apparatus, which will produce a uniform attractive coating on the bulb or other article. lBurther features and advantages will appear from the following description of species thereof and from the accompanying drawings.

lln the drawings Fig. 1 is a partial elevation of an apparatus embodying our invention; Fig. 2 is a similar view of another form of apparatus embodying our invention; Fig. 3 is a top plan view of a bulb holder used in connection with our apparatus; Fig. l is a fragmentary vertical section on an enlarged scale showing the bulb and its holder in the inverted position prior to being placed upon the apparatus; and l ig. 5 is a similar view showing the position of the bulb after being placed upon the apparatus ready for treat ment. 7

As shown in the drawings, our apparatus comprises the removable holder 10 which comprises a number of sockets for receiving the neclrs of bulbs ll. The said holder co1nprises two plates l2l3 clamped between which are a plurality of cup members or soclrets consisting of cylindrical shells l4.- containing the centrally apertured bushings or rings of resilient material such as soft rubber. purpose although other materials may be used which. will have the desired resiliency to hold the bulb or other article when it is inserted therein. Also mounted on the plate 12 and registering with the apertures 16 of the bushings or rings 15 are a plurality of cups ll" preferably of metal. As shown in Fig. 4 the holder is initially in such a posi tion that the cups 1'! are in the lowermost position and each contains a quantity of powdered pigment 18. The bulbs 19 which, as disclosed in the Piplrin application hereinbefore referred to are frosted onthe inside,

are inserted in the sockets it. The holder is then inverted causing the powdered pigment T8 to fall from the cups 17 into the bulbs l9 such as shown in ll ig. a. The holderis Sponge rubber is suitable for thisthen placed in a machine, as shown in Fig. l, 55

which comprises a plate 20 which has extendmg upwardly therefrom a pair of rods 21-22. These rods extend through slots 23-2d formed in the holder which in turn is rigidly held on the said rods through a pair to of spring pressed pins 2526. lln order to position and rigidly hold the bulbs during the coloring operation a base 27 is provided. This base is carried by the plate 20 and has located therein a series of depressions 28' c5 shaped to receive and support the bowl portions of the bulbs 19.

The plate 20 is supported on the upper end of a bar 29 which slides in grooves formed by the vertical strips 30 and stationary frame 31. to

.d vibrating motion is communicated to the plate 20 through the connecting rod 32 piv oted at one end to the bar 29 and to the other end to a lug 38 mounted on shaft 34: which is rotated through the friction discs 35-36. The lower end of bar 29 carries a braclret 37 ment fall. from the bulbs baclr into the cups so if. The bulbs can then be removed and new bulbs inserted and the operation of the machine repeated.

ln 2 is shown another form of machin in which the holder ill rests in an inclined at position being held in this position through a pair of. clamp screws which bear against the rods rant-a extending upwardly from the plate 44:. Th addition to being rap idly vibrated ing the vibra ing operation. We find that in coloring glass articles having long narrow necks the color isrnore evenly distributed where this method is employed. The plate ddhas depending therefrom a short shaft d5 which is supported in the bracket d6 carried on the upper end of the sliding bar all. it. pulley ll-8 fastened to the lower end of the loaded with bulbs has W When at the holder is slowly rotated dur mo shaft 45 is rotated from an outside. source (not shown) through the belt 49 which rides over the idlers 5051.

What we claim as new and desire to secure 5 by Letters Patent of the United States, is:

1. In a machine of the class described, the combination of a holder comprising an apertured socket for receiving the neck of a bulb or similar article, a cup having an aperture in registry with the aperture in said socket, a support adapted to receive said holder, and means for vibrating said support.

2. In a machine of the class described, the combination of a holder comprising an apertured socket for receiving the neck of a bulb or similar article, a cup having an aperture in registry with the aperture in said socket, a support adapted to receive said holder, and means for simultaneously vibrating and rotating said support.

3. In a machine of the class described, the combination of a holder having a socket comprising a resilient apertured bushing for receiving the neck of a bulb or similar article, a cup having an aperture in registry with the aperture in said socket, a support adapted to receive said holder, and means for vibrating said support.

4. In a machine of the class described, the

combination of a holder having a socket comprising a resilient apertured bushing for receiving the neck of a bulb or similar article, a cup having an aperture in registry with the aperture in said socket, a support adapted to receive said holder, and means for simultaneously vibrating and rotating said support.

In witness whereof, we have hereunto set our hands this 2nd day of December, 1927.

JOHN T. FAGAN. ROSCOE G. PHELPS. 

